Equations
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| commission | Money paid to a person or company for making a sale, usually a percent of the sale amount.
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| contradiction | An equation that has no solutions.
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| conversion factor | The ratio of two equal quantities, each measured in different units.
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| corresponding angles | Angles in the same position in two different polygons that have the same number of angles.
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| corresponding sides | Sides in the same position in two different polygons that have the same number of sides.
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| cross products | In the statement a/b = c/d, bc and ad are the cross products.
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| discount | An amount by which an original price is reduced.
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| equation | A mathematical statement that two expressions are equivalent.
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| formula | A literal equation that states a rule for a relationship among quantities.
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| identity | An equation that is true for all values of the variables.
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| indirect measurement | A method of measurement that uses formulas, similar figures, and/or proportions.
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| interest | The amount of money charged fro borrowing money or the amount of money earned when saving or investing money.
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| literal equation | An equation that contains two or more variables.
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| markup | The amount by which a wholesale cost is increased.
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| percent | A ratio that compares a number to 100.
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| percent change | An increase or decrease given as a percent of the original amount.
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| percent decrease | A decrease given as a percent of the original amount.
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| percent increase | An increase given as a percent of the original amount.
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| principal | An amount of money borrowed or invested.
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| proportion | A statement that two ratios are equal.
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| rate | A ratio that compares two quantities measured in different units.
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| ratio | A comparison of two quantities by division.
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| sales tax | A percent of the cost of an item that is charged by governments to raise money.
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| scale | The ratio between two corresponding measurements.
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| scale drawing | A drawing that uses a scale to represent an object as smaller or larger than the actual object.
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| scale factor | The multiplier used on each dimension to change one figure into a similar figure.
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| scale model | A three-dimensional model that uses a scale to represent an object as smaller or larger than the actual object.
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| similar | Two figures are similar if they have the same shape but not necessarily the same size.
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| solution of an equation | A value of the variable that makes the equation true.
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| tip | An amount of money added to a bill for service; usually a percent of the bill.
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| unit rate | A rate in which the second quantity in the comparison is one unit.
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Created by:
bookannelid
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